EP1596502A3 - Noise power estimation apparatus, noise power estimation method and signal detection apparatus - Google Patents

Noise power estimation apparatus, noise power estimation method and signal detection apparatus Download PDF

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Publication number
EP1596502A3
EP1596502A3 EP20050252919 EP05252919A EP1596502A3 EP 1596502 A3 EP1596502 A3 EP 1596502A3 EP 20050252919 EP20050252919 EP 20050252919 EP 05252919 A EP05252919 A EP 05252919A EP 1596502 A3 EP1596502 A3 EP 1596502A3
Authority
EP
European Patent Office
Prior art keywords
noise power
power
power estimation
received
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20050252919
Other languages
German (de)
French (fr)
Other versions
EP1596502B1 (en
EP1596502A2 (en
Inventor
Junichiro c/o NTT DoCoMo Inc. Kawamoto
Noriyuki c/o NTT DoCoMo Inc. MAEDA
Kenichi c/o NTT DoCoMo Inc. Higuchi
Mamoru c/o NTT DoCoMo Inc. SAWAHASHI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
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NTT Docomo Inc
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Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of EP1596502A2 publication Critical patent/EP1596502A2/en
Publication of EP1596502A3 publication Critical patent/EP1596502A3/en
Application granted granted Critical
Publication of EP1596502B1 publication Critical patent/EP1596502B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/16—Deriving transmission power values from another channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Noise Elimination (AREA)
  • Radio Transmission System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A noise power estimation apparatus is disclosed. The noise power estimation apparatus includes: a part for calculating correlation between a received signal and a pilot signal so as to obtain a received power of the pilot signal for each path; a part for removing a multipath interference component from the received power of the pilot signal by using a predetermined power ratio between the pilot signal and a data signal so as to obtain a corrected received power of the pilot signal; a part for estimating an estimated total power of the pilot signal and the data signal included in the received signal based on the corrected received power and the predetermined power ratio; and a part for subtracting the estimated total power from a total power of the received signal so as to obtain a noise power.
EP20050252919 2004-05-13 2005-05-12 Noise power estimation apparatus, noise power estimation method and signal detection apparatus Not-in-force EP1596502B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004144181A JP4369294B2 (en) 2004-05-13 2004-05-13 Noise power estimation apparatus, noise power estimation method, and signal detection apparatus
JP2004144181 2004-05-13

Publications (3)

Publication Number Publication Date
EP1596502A2 EP1596502A2 (en) 2005-11-16
EP1596502A3 true EP1596502A3 (en) 2006-02-01
EP1596502B1 EP1596502B1 (en) 2008-01-02

Family

ID=34941266

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050252919 Not-in-force EP1596502B1 (en) 2004-05-13 2005-05-12 Noise power estimation apparatus, noise power estimation method and signal detection apparatus

Country Status (8)

Country Link
US (2) US7421009B2 (en)
EP (1) EP1596502B1 (en)
JP (1) JP4369294B2 (en)
KR (1) KR100686969B1 (en)
CN (1) CN100488180C (en)
AT (1) ATE382988T1 (en)
DE (1) DE602005004063T2 (en)
ES (1) ES2296097T3 (en)

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CN101375521B (en) 2006-01-24 2013-03-27 日本电气株式会社 Transmission path estimation device, equalisation device, and radio system
CN101379722B (en) * 2006-02-01 2012-10-03 日本电气株式会社 Equalization device and equalization method
US8351553B2 (en) 2006-04-13 2013-01-08 Nec Corporation MIMO receiving apparatus and receiving method
JP2009534003A (en) * 2006-04-17 2009-09-17 クゥアルコム・インコーポレイテッド Noise evaluation for wireless communication
WO2007139145A1 (en) * 2006-05-30 2007-12-06 Sharp Kabushiki Kaisha Wireless receiver, wireless communication system and wireless receiving method
GB0615292D0 (en) * 2006-08-01 2006-09-06 Ttp Communications Ltd Signal evaluation and adjustment
KR20080026896A (en) * 2006-09-22 2008-03-26 삼성전자주식회사 Apparatus and method for extimating channel using hidden pilots in mobile communication system
JP2008124942A (en) * 2006-11-15 2008-05-29 Nec Corp Wireless communications system, wireless communications device and valid path detection method therefor
CN101542947B (en) 2007-01-12 2013-03-20 松下电器产业株式会社 Reception device and reception method
US8054914B2 (en) * 2007-01-30 2011-11-08 Texas Instruments Incorporated Noise variance estimation
EP2141828A4 (en) * 2007-03-30 2014-04-16 Fujitsu Ltd Equalizer control apparatus, equalizer control method, and wireless terminal having that control apparatus
JP2009065403A (en) 2007-09-06 2009-03-26 Nec Corp Method and device for estimating reception quality in radio communication
US8264975B2 (en) 2008-02-20 2012-09-11 Qualcomm Incorporated FFT-based estimation of thermal noise and rise over thermal in a wireless communication system
JP4875642B2 (en) 2008-02-27 2012-02-15 株式会社日立製作所 Noise power estimation apparatus and method
CN101277127B (en) * 2008-03-21 2011-10-26 华为技术有限公司 Method for receiving signal as well as receiver, method for combining signal as well as module
JP5241437B2 (en) * 2008-11-13 2013-07-17 三星電子株式会社 Reception device and signal processing method
US8699640B2 (en) * 2008-12-03 2014-04-15 Nec Laboratories America, Inc. Transmitter compensation in decoding of intensity modulated optical OFDM with direct detection
JP5216617B2 (en) * 2009-02-03 2013-06-19 Ｋｄｄｉ株式会社 Wireless receiver, wireless reception method, and wireless reception program
US8095077B2 (en) * 2009-02-05 2012-01-10 Cambridge Silicon Radio Limited Signal power estimation
JP5175253B2 (en) * 2009-08-31 2013-04-03 日本放送協会 Single carrier receiver
JP5130276B2 (en) * 2009-11-18 2013-01-30 株式会社エヌ・ティ・ティ・ドコモ Wireless base station
GB201001469D0 (en) * 2010-01-29 2010-03-17 Icera Inc Signal processing in wireless communication receivers
CN102148787A (en) * 2010-02-10 2011-08-10 思亚诺移动芯片有限公司 Method, circuit and system for reducing or eliminating receiving signal noises
JP2011188206A (en) * 2010-03-08 2011-09-22 Sharp Corp Receiver, receiving method, receiving program, and processor
US8767799B2 (en) * 2011-04-12 2014-07-01 Alcatel Lucent Method and apparatus for determining signal-to-noise ratio
US9564980B2 (en) * 2011-09-09 2017-02-07 Samsung Electronics Co., Ltd. Mobile telecommunication system with noise ratio estimation mechanism and method of operation thereof
JP5382094B2 (en) * 2011-11-21 2014-01-08 日本電気株式会社 Wireless communication system, wireless communication apparatus, and effective path detection method used therefor
US8831530B2 (en) 2012-04-30 2014-09-09 Samsung Electronics Co., Ltd. Communication system with transmission power estimation mechanism and method of operation thereof
ES2457840B1 (en) 2012-09-28 2015-02-16 Universidad De Murcia Variable power accommodative intraocular lens and variable power accommodative intraocular lens set and capsular ring
KR102093266B1 (en) 2013-02-28 2020-03-25 삼성전자주식회사 Method and apparatus for detecting signal
CN103391140B (en) * 2013-07-19 2015-10-14 京信通信系统（中国）有限公司 The power detecting method of CDMA2000 and EVDO mixed signal and system
JP6219193B2 (en) * 2014-02-21 2017-10-25 パナソニック株式会社 Equalization method and equalizer
CN105282059A (en) 2014-06-30 2016-01-27 深圳市中兴微电子技术有限公司 Multi-path selection method and equipment
CN106375251B (en) * 2016-08-31 2019-04-09 北京松果电子有限公司 Noise power estimation method, device and user equipment

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Also Published As

Publication number Publication date
US7421009B2 (en) 2008-09-02
JP4369294B2 (en) 2009-11-18
DE602005004063D1 (en) 2008-02-14
KR100686969B1 (en) 2007-02-26
CN100488180C (en) 2009-05-13
US20080253432A1 (en) 2008-10-16
EP1596502B1 (en) 2008-01-02
ATE382988T1 (en) 2008-01-15
DE602005004063T2 (en) 2008-12-18
ES2296097T3 (en) 2008-04-16
US20050259721A1 (en) 2005-11-24
US8144822B2 (en) 2012-03-27
JP2005328311A (en) 2005-11-24
CN1697428A (en) 2005-11-16
KR20060047917A (en) 2006-05-18
EP1596502A2 (en) 2005-11-16

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